South Fork Newaukum River Bridge, Spanning South Fork Newkaukum River at State Route, Onalaska, Lewis County, WA
Photo Caption Pages
Spanning South Fork Newkaukum River at State Route, Onalaska vicinity, WA
Find maps of Onalaska, WA
Documentation compiled after 1968.
Survey number HAER WA-112
Unprocessed field note material exists for this structure (N158).
Building/structure dates: 1930 initial construction
Significance: A good, virtually unaltered example of a riveted Pony Warren Truss with verticals. The design may have been based on one of the standard bridge designs developed by the Washington Department of Highways from 1920.
Historic American Engineering Record (Library of Congress)
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